Non-BPS States and Branes in String Theory
High Energy Physics - Theory
2009-10-31 v1
Abstract
We review the recent developments in our understanding of non-BPS states and branes in string theory. The topics include 1) construction of unstable non-BPS D-branes in type IIA and type IIB string theories, 2) construction of stable non-BPS D-branes on various orbifolds and orientifolds of type II string theories, 3) description of BPS and non-BPS D-branes as tachyonic soliton solutions on brane-antibrane pair of higher dimension, and 4) study of the spectrum of non-BPS states and branes on a system of coincident D-brane - orientifold plane system. Some other related results are also discussed briefly.
Keywords
Cite
@article{arxiv.hep-th/9904207,
title = {Non-BPS States and Branes in String Theory},
author = {Ashoke Sen},
journal= {arXiv preprint arXiv:hep-th/9904207},
year = {2009}
}
Comments
LaTeX file, epsf, 53 pages, 17 figures, APCTP winter school lectures